Ranong mountains and the sea Mountain, about 86 percent of the space on the plains and mountains of Phuket, about 14 percent of the space is divided into two zones: 1. Mountain and higher. On the east side of the province The mountains are a continuation Tanaosri posing in direction from north to south. And slope to the sea It is important that the source watershed Kra Canal La-un 2. the coastal plain. The area to the west of the province The area was swamped plains. Which is topped by a narrow width of about 5-20 km coastline and its charming riverside. The waters around the islands are about 62 islands such as Koh Payam Koh Ngai, Koh Lao Thai island bat and so on.